Two-headed People

Dicephalus dibrachius diauchenos.from: Hirst & Piersol, 1893

Polycephaly is a condition of having more than one head. The term is derived from the Greek stems poly- meaning 'much' and kephali- meaning 'head', and encompasses bicephaly and dicephaly (both referring to two-headedness). A variation is an animal born with two faces on a single head, a condition known as diprosopus. In medical terms these are all congenital cephalic disorders.

There are many occurrences of multi-headed animals, in real life as well as in mythology. In heraldry and vexillology, the double-headed eagle is a common symbol, though no such animal is known to have ever existed.

Bicephalic or tricephalic animals are the only type of multi-headed creatures seen in the real world and form by the same process as conjoined twins: they all result from the failed separation of monozygotic twins. –Wikipedia

Abigail Loraine Hensel and Brittany Lee Hensel (born 7 March 1990, Minnesota, United States) are dicephalic conjoined twins. Brittany ("Britty") is the left twin, and Abigail ("Abby") is the right twin. They have two spines which join at the pelvis. They have two stomachs, three lungs, and at birth, three arms (the arm between their heads was underdeveloped and useless, and was amputated in infancy).– Wikipedia

Conjoined twin brothers who share the same the same body and heart have been born today [4 December 2014] in Atlanta.

Asa and Eli Hamby - who can never be separated - were welcomed into the world at 7.32am via a pre-planned C-section to mom Robin and dad Michael and according to a dedicated 'Hamby Twins' Facebook page are healthy and well.

Born with two heads, but sharing one body, the condition Asa and Eli have is known as dicephalic parapagus - an extremely unusual form of conjoinment, affecting only one-in-a-million births.

Asa and Eli can never be separated because they share one heart and one circulatory system.

Shortly after the birth, Robin was told there was a slight issue with her son's heart, but that they are doing well.

'There is an issue with the right side of the heart. The left side is perfect. The right side has like an extra atrium and an extra ventricle, and there's two aortas. One of the arteries is like switched, not in the right place because of having extra ones, but he said that their vital signs are stable,' said mmom [sic] to the Ledger Enquirer.

Late Friday night [5 December 2014], Michael Hamby posted an 8-minute message with his wife by his side saying, in part, "I'm sad, so sad to say that my sons passed away today at 5 o'clock. They fought long and hard."

Cairo - A 26-year old woman from a village in upper Egypt has given birth to a health baby girl with two heads, the Cairo daily Al-Akhbar reported on Friday. The baby can move both heads, according to the newspaper, which also published a photo of the child.

The baby was delivered by Caesarean section in a hospital in Assiut after an uncomplicated nine-month pregnancy. The baby was then brought to a specialist clinic in Cairo to carry out further tests and to establish how to manage this unusual case. - Sapa-DPA

Doctors check three girls [sic] born in San Juan, Argentina some 1,280 km (800 miles) northwest of Buenos Aires, Argentina, by a 25-year old woman (who was not identified) giving triplets, one normal and two conjoined., Sunday, June 22, 2003. (AP Photo/Courtesy Diario de Cuyo)

An Argentine woman has given birth to conjoined twin girls and a boy. The twins were born fused at the head, and shared a heart and other vital organs. The woman also delivered a healthy baby boy.

The birth occurred in the provincial city of San Juan, Doctor Gonzalo Medina told the Todo Noticias cable news channel. He said the girls were born joined from the chest to mid-abdomen and shared other lower parts of the body. He said the twins, born as part of triplets with the boy, are in a stable condition. He said an initial assessment indicated it may not be possible to separate them. But he added that his staff are consulting with surgical teams in other countries. The mother, who was not identified, is in a stable condition, Medina said.

Conjoined twins occur when a single fertilized egg splits to form twins, but the separation is incomplete. They occur about once in every 200,000 live births and are three times more likely to be girls than boys.

A nurse holds an Egyptian baby named Manar Maged in a hospital in the city of Banha, 25 miles, north of Cairo Feb. 18, 2005. Egyptian doctors said they removed the second head from the girl, who was suffering from the rare birth defects in an operation on Saturday [19 Feb 2005]. (Photos: Reuters)

Egyptian doctors said they removed a second head from a 10-month-old girl suffering from one of the rarest birth defects in an operation [19 Feb 2005]. Abla el-Alfy, a consultant in paediatric intensive care, told Reuters at the hospital in Benha, near Cairo, that Manar Maged was in a serious but improving condition after the procedure to treat her for craniopagus parasiticus  a problem related to that of conjoined twins linked at the skull. We are still working on the baby. After surgery you get unstable blood pressure, you get fever. But she is stabilizing, Alfy said. We have some improvement.
 Amil Khan, Egyptian Doctors Remove Babys Second Head, Yahoo! News, 19 Feb 2005.

Eleven-month-old Manar Maged sleeps at Benha Hospital, north of Cairo, Egypt on Feb. 21. The girl is in stable condition after undergoing a second operation to remove excess fluid from her brain. ‘Two-headed’ baby out of intensive care, MSNBC News, 10 March 2005.

Eighteen surgeons, nurses and doctors will take several rotations to cut off the undeveloped tissue, clip the veins and arteries and close the skull of the seven-week-old baby using a bone graft from another part of her body.

Cure International, a Lemoyne, Pa.,-based charity that gives medical care to disabled children in developing countries, is paying for the surgery and follow-up care.

Arlene Aguirre gives her conjoined twins a kiss Wednesday before they were taken into the operating room.

Two-year-old twins from the Philippines born with the tops of their heads fused together were strong and stable after being separated in a marathon operation that stretched into early [5 August 2004].

Carl and Clarence Aguirre remained under heavy sedation in side-by-side beds but were expected to awaken later in the day — the first time in their short lives that they would see each other apart, their jubilant doctors said.

Two-Faced People

FNC

A baby girl born in Northern India Monday has two faces, it is reported by NBC affiliate KARE11. The residents of the small village where the baby was born have begun gathering to worship the child, seen as an incarnation of God.

The girl was born in Gautam Budh Nagar in the suburbs of Delhi, IBNLive.com. She was born to Vinod Singh and Sushma at Saifai Hospital in Dadr, India.

Faith and Hope lived for almost three weeks before passing away on Tuesday [27 May 2014]. The twin girls from Sydney suffered from diprosopus, a condition where conjoined twins are born with one body but two separate faces and brains.

Before their death, the parents said their little girls had developed distinct personalities.

Two-mouthed man

The 16 July 2004 episode of Ripleys Believe it or Not episode contained a segment about a man with two mouths. Scans showed he had an underdeveloped twin located within his body complete with partial brain. Successful surgery removed the twin from his face.

Two-faced Cats – Diprosopus, also known as craniofacial duplication, is an extremely rare form of conjoined twins.

One-eyed Cats – Cyclopia (also cyclocephaly or synophthalmia) is characterized by the failure of the embryonic prosencephalon to properly divide the orbits of the eye into two cavities.